This line plot shows the masses of rocks in a museum display. What is the least common mass?

Suppose you want just guess at the answers in a 5 question multiple-choice test. each question has 3 responses and only one is correct. what is the probability of getting two questions right just guessing? 20 points 0.3275 0.2753 0.7532 none of the above

Need solving this second acceleration problem.

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1